Using light pulses to implement auto-focus in a digital camera
US7502064B2 · kind B2 · utility
1Cited by
4References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2004 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Mar 17, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B13/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A camera includes a light transmitter configured to transmit light pulses at a first rate, a light receiver configured to receive return signals corresponding to the light pulses transmitted by the light transmitter, and a sampler configured to sample electrical signals corresponding to the return signals received by the light receiver, wherein the sampler is configured to sample the electrical signals at a second rate that is lower than the first rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.